Description
MPN: UD10670
Features:
- Ultra-Smooth Recoil Control: Progressive 90° side ports vent gases in stages, spreading out the recoil impulse for flatter shooting and faster, more accurate follow-up shots
- Neutralizes Muzzle Rise: Balanced gas release keeps the muzzle level without sharp blast or shooter distraction
- Compact & Lightweight: Designed for shooters who want strong recoil reduction without adding bulk to the muzzle
- Dynamount Ready: Compatible with Ultradyne’s on-barrel Dynamount sight system, eliminating accuracy issues caused by handguard deflection
- Easy, Precise Installation: Includes a timing nut for straightforward clocking
- Premium Materials: 100% CNC machined in the USA from 416 stainless steel
- Ultra-Rugged Finish: Salt bath nitride treatment for excellent wear, heat, and corrosion resistance
- Standard AR Fitment: 1/2×28 threading for .223/5.56 AR-15 barrels
Specifications:
- Caliber: 5.56 NATO / .223 Rem
- Material: 416 Stainless Steel
- Finish: QPQ Nitride
- Weight: 3.9 oz.
- Length: 2.43"
- Outer Diameter:
- Muzzle End: 0.62"
- Body: 0.865"
- Bore Diameter: 0.271"
- Thread: 1/2"-28 TPI
Compatibility:
- 5.56 NATO / .223 Rem / .224 Valkyrie barrel with 1/2"-28 thread pitch and a minimum thread length of 0.600 inches
- Compatible with Dynamount front sight
*It is recommended to use this muzzle device on barrels 12" or longer due to the muzzle blast from aggressive recoil reduction.
Includes:
- 1x Ultradyne Mercury Muzzle Brake (.223/5.56)
- 1x Cover Sleeve
- 1x Shrouded Timing Nut
Details:
The Mercury 5.56 Muzzle Brake is built for shooters who want recoil reduction that feels controlled and deliberate, not abrupt or overbearing. Rather than dumping gas all at once, Mercury uses progressive 90-degree side ports to vent gases in stages. That staged release spreads the recoil impulse out over time, helping manage muzzle rise while keeping the rifle tracking flat and predictable through the shot. The end result is quicker follow-up shots with less disruption to your sight picture.
Compact, Lightweight, and Easy to Run
Mercury Muzzle Brake keeps a low profile at the muzzle, making it a natural fit for lightweight builds, duty carbines, and competition rifles where balance matters. It delivers meaningful recoil control without adding unnecessary length or front-end weight, so the rifle retains its natural pointability and handling. It’s effective without feeling bulky or out of place on slimmer barrels.
Dynamount Compatible for Consistent Sight Alignment
Designed to work with Dynamount on-barrel front sights, the Mercury Muzzle Brake allows shooters to mount a front sight directly to the barrel instead of the handguard. This eliminates potential point-of-impact shift caused by handguard flex or pressure, helping maintain consistent alignment during recoil and rapid strings. For shooters running iron sights or hybrid setups, this adds a layer of mechanical consistency that handguard-mounted sights can’t match.
Built Tough, Installs Clean
Each Mercury brake is 100% CNC machined in the USA from 416 stainless steel and finished with a durable salt bath nitride treatment to resist heat, carbon buildup, and corrosion. A timing nut is included, allowing for clean, precise installation without shims or trial-and-error alignment. Set it, torque it, and it stays where it belongs.
Refined Recoil Control in a Practical Package
For shooters who want a compact 5.56 muzzle brake that prioritizes smooth recoil characteristics, consistent tracking, and thoughtful design, the Mercury Muzzle Brake delivers. It’s a well-balanced solution that enhances control without complicating your rifle or changing how it handles.
